Signal-Android/app/src/main/java/org/thoughtcrime/securesms/components/ConversationItemThumbnail.java

package org.thoughtcrime.securesms.components;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.widget.FrameLayout;
import android.widget.ImageView;

import androidx.annotation.ColorInt;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.Px;
import androidx.annotation.UiThread;

import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.attachments.Attachment;
import org.thoughtcrime.securesms.mms.GlideRequests;
import org.thoughtcrime.securesms.mms.Slide;
import org.thoughtcrime.securesms.mms.SlideClickListener;
import org.thoughtcrime.securesms.mms.SlidesClickedListener;
import org.thoughtcrime.securesms.util.Projection;
import org.thoughtcrime.securesms.util.ViewUtil;

import java.util.List;

public class ConversationItemThumbnail extends FrameLayout {

  private ThumbnailView          thumbnail;
  private AlbumThumbnailView     album;
  private ImageView              shade;
  private ConversationItemFooter footer;
  private CornerMask             cornerMask;
  private Outliner               pulseOutliner;
  private boolean                borderless;
  private int[]                  normalBounds;
  private int[]                  gifBounds;
  private int                    minimumThumbnailWidth;
  private int                    maximumThumbnailHeight;

  public ConversationItemThumbnail(Context context) {
    super(context);
    init(null);
  }

  public ConversationItemThumbnail(Context context, AttributeSet attrs) {
    super(context, attrs);
    init(attrs);
  }

  public ConversationItemThumbnail(final Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    init(attrs);
  }

  private void init(@Nullable AttributeSet attrs) {
    inflate(getContext(), R.layout.conversation_item_thumbnail, this);

    this.thumbnail  = findViewById(R.id.conversation_thumbnail_image);
    this.album      = findViewById(R.id.conversation_thumbnail_album);
    this.shade      = findViewById(R.id.conversation_thumbnail_shade);
    this.footer     = findViewById(R.id.conversation_thumbnail_footer);
    this.cornerMask = new CornerMask(this);

    int gifWidth = ViewUtil.dpToPx(260);
    if (attrs != null) {
      TypedArray typedArray = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.ConversationItemThumbnail, 0, 0);
      normalBounds = new int[]{
          typedArray.getDimensionPixelSize(R.styleable.ConversationItemThumbnail_conversationThumbnail_minWidth, 0),
          typedArray.getDimensionPixelSize(R.styleable.ConversationItemThumbnail_conversationThumbnail_maxWidth, 0),
          typedArray.getDimensionPixelSize(R.styleable.ConversationItemThumbnail_conversationThumbnail_minHeight, 0),
          typedArray.getDimensionPixelSize(R.styleable.ConversationItemThumbnail_conversationThumbnail_maxHeight, 0)
      };

      gifWidth = typedArray.getDimensionPixelSize(R.styleable.ConversationItemThumbnail_conversationThumbnail_gifWidth, gifWidth);
      typedArray.recycle();
    } else {
      normalBounds = new int[]{0, 0, 0, 0};
    }

    gifBounds = new int[]{
        gifWidth,
        gifWidth,
        1,
        Integer.MAX_VALUE
    };

    minimumThumbnailWidth  = -1;
    maximumThumbnailHeight = -1;
  }

  @SuppressWarnings("SuspiciousNameCombination")
  @Override
  protected void dispatchDraw(Canvas canvas) {
    super.dispatchDraw(canvas);

    if (!borderless) {
      cornerMask.mask(canvas);
    }

    if (pulseOutliner != null) {
      pulseOutliner.draw(canvas);
    }
  }

  public void hideThumbnailView() {
    thumbnail.setAlpha(0f);
  }

  public void showThumbnailView() {
    thumbnail.setAlpha(1f);
  }

  public @NonNull Projection.Corners getCorners() {
    return new Projection.Corners(cornerMask.getRadii());
  }

  public void setPulseOutliner(@NonNull Outliner outliner) {
    this.pulseOutliner = outliner;
  }

  @Override
  public void setFocusable(boolean focusable) {
    thumbnail.setFocusable(focusable);
    album.setFocusable(focusable);
  }

  @Override
  public void setClickable(boolean clickable) {
    thumbnail.setClickable(clickable);
    album.setClickable(clickable);
  }

  @Override
  public void setOnLongClickListener(@Nullable OnLongClickListener l) {
    thumbnail.setOnLongClickListener(l);
    album.setOnLongClickListener(l);
  }

  public void showShade(boolean show) {
    shade.setVisibility(show ? VISIBLE : GONE);
    forceLayout();
  }

  public void setCorners(int topLeft, int topRight, int bottomRight, int bottomLeft) {
    cornerMask.setRadii(topLeft, topRight, bottomRight, bottomLeft);
  }

  public void setMinimumThumbnailWidth(@Px int width) {
    minimumThumbnailWidth = width;
    thumbnail.setMinimumThumbnailWidth(width);
  }

  public void setMaximumThumbnailHeight(@Px int height) {
    maximumThumbnailHeight = height;
    thumbnail.setMaximumThumbnailHeight(height);
  }

  public void setBorderless(boolean borderless) {
    this.borderless = borderless;
  }

  public ConversationItemFooter getFooter() {
    return footer;
  }

  @UiThread
  public void setImageResource(@NonNull GlideRequests glideRequests, @NonNull List<Slide> slides,
                               boolean showControls, boolean isPreview)
  {
    if (slides.size() == 1) {
      Slide slide = slides.get(0);
      if (slide.isVideoGif()) {
        setThumbnailBounds(gifBounds);
      } else {
        setThumbnailBounds(normalBounds);

        if (minimumThumbnailWidth != -1) {
          thumbnail.setMinimumThumbnailWidth(minimumThumbnailWidth);
        }

        if (maximumThumbnailHeight != -1) {
          thumbnail.setMaximumThumbnailHeight(maximumThumbnailHeight);
        }
      }

      thumbnail.setVisibility(VISIBLE);
      album.setVisibility(GONE);

      Attachment attachment = slides.get(0).asAttachment();
      thumbnail.setImageResource(glideRequests, slides.get(0), showControls, isPreview, attachment.getWidth(), attachment.getHeight());
      setTouchDelegate(thumbnail.getTouchDelegate());
    } else {
      thumbnail.setVisibility(GONE);
      album.setVisibility(VISIBLE);

      album.setSlides(glideRequests, slides, showControls);
      setTouchDelegate(album.getTouchDelegate());
    }
  }

  public void setConversationColor(@ColorInt int color) {
    if (album.getVisibility() == VISIBLE) {
      album.setCellBackgroundColor(color);
    }
  }

  public void setThumbnailClickListener(SlideClickListener listener) {
    thumbnail.setThumbnailClickListener(listener);
    album.setThumbnailClickListener(listener);
  }

  public void setDownloadClickListener(SlidesClickedListener listener) {
    thumbnail.setDownloadClickListener(listener);
    album.setDownloadClickListener(listener);
  }

  private void setThumbnailBounds(@NonNull int[] bounds) {
    thumbnail.setBounds(bounds[0], bounds[1], bounds[2], bounds[3]);
  }
}